Automatic feed-regulating mechanism for paper-making machines.



H. G. ZIEMANN.

AUTOMATIC FEED REGULATING MEGHANISM FOR PAPER MAKING MACHINES.

VAPPLIOATION FILED NOV. 6, 1911.

1,019,580. Patented Mar. 5, 1912.

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AUTOMATIC FEED RBGULATING MECHANISM FOR PAPER MAKING MACHINES.

APPLIOATION FILED NOV. 6, 1911. 1,01 9,580. Patented Mar. 5, 1912.

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H. U. ZIEMANN.

AUTOMATIG FEED REGULATING MECHANISM FOR PAPER MAKING MACHINES.

APPLICATION FILED NOV. 6, 1911.

1,019,580. Q Patented Mar. 5, 1912.

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HENRY C. ZIEMANN, OF MIL-LINOCKET, MAINE.

AUTOMATIC FEED-REGULATING MECHANISM FOR PAPER-MAKING" MACHINES.

Specification of Letters Patent.

Patented Mar. 5, 1912.

Application filed November 6, 1911. Serial No. 658,894.

To all whom it may concern:

Be it known that I, HENRY C. ZIEMANN, a citizen of the United States,residing at Millinocket, in the county of Penobscot and State of Maine,have invented certain new and useful Improvements in AutomaticFeed-Regulating Mechanism for Paper- Making Machines; and I do declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in automatic feed regulatingmechanism for paper making machines.

One object of the invention is to provide an automatic pulp or stockfeeding mechanism for paper making machines having an improved meanscontrolled by the flow of the pulp or stock from which the paper is madefor feeding the pulp or stock according to the consistency thereof.

Another object is to provide a feeding mechanism of this characterhaving means whereby the feeding of the pulp is automatioally controlledaccording to the speed at which the machine is working.

With these and other objects in View the invention consists of certainnovel features of construction, and the combination and arrangement ofparts as will be more fully described and claimed.

In the accompanying drawings; Figure 1 is a side view of my improvedpulp feeding mechanism, parts being broken away and in sect-ion; Fig. 2is a vertical sectional view of the same on the line 2-2 of Fig. 1; Fig.3 is a vertical sectional view of the upper pressure box of themechanism on the line 33 of Fig. 2; Fig. 4 is a similar view through thelower pressure box of the mechanism on the line 4-4 of Fig. 2; Fig. 5 isa horizontal sectional view through the lower pressure box.

In the embodiment of the invention, I provide a box or tank 1 which ispreferably of rectangular form and is divided by partitions 2 and 3 intoa feed box or compartment 4, a gravity pressure box or compartment 5 andan overflow box or compartment 6. The partition 2 between the feed boxand the gravity pressure box is somewhat lower than the partition 3between the feed box and the overflow box as clearly shown in thedrawings, so that the pulp entering the feed box will flow over thepartition 2 and into the pressure box until the Flow of the pulp intothe box exceeds the discharge of the pulp from the pressure boxwhereupon the surplus pulp will flow over the partition 3 and into theoverflow box 6.

The bottoms of the feed box or compartment, gravity pressure box andoverflow box are inclined from all sides toward the con ter and with thecenter of the feed box is connected the upper end of a feed pipe 7through which the pulp or stock is pumped or forced into the feed box 4and from which the pulp overflows into the gravity pressure box 5 ashereinbefore described. With the center of the bottom of the pressurebox 5 is connected the upper end of a pressure or pulp conducting pipe8, the lower end of which connects with another part of the feedregulating mechanism hereinafter described. Through the center of thebottom of the overflow box 6 is connected an overflow or dischargingpipe 9, which leads to and is connected with any suitable receptacle(not shown). The box 1 containing the feed, gravity pressure andoverflow compartments is preferably supported upon suitable legs 10 asshown.

Arranged at a suitable distance below and to one side of the box 1 orupper portion of the apparatus is a lower box 11 which is divided by apartition 12 into a pressure box or compartment 13 and an overflow orcompartment 14. The compartments 13 and 14 are also provided withbottoms which incline from all sides toward the center and to the centerof the bottom of the compartment 13 is connected the lower end of thepressure or pulp conducting pipe 8. To the center of the bottom of theoverflow compartment 14 is connected an overflow or pulp conducting pipe15. Connected with the discharge opening 16 in one side of the pressurebox or compartment 13 at a suitable distance above the bottom of the boxis a pulp conducting pipe 17 which leads to the paper making machine(not shown). Slidably engaged with the inner side of the compartment 13and adapted to open and close to regulate the size of the dischargeopening 16 is a feed regulating valve 18, said valve comprising a plateto which is loosely connected the lower end of a valve operating rod 19the upper end of which has an adjustable connection with a pressureorvalve operating plate 20 hingedly connected at one edge to one side ofthe compartment 13 and forms a hinged cover for said compartment. Thefree edge of the overflow plate 20 is disposed above and spaced asuitable distance from the upper end of the plate 12 and on said freeend of the plate is arranged a weight 2 1, which, together with theweight of the plate holds the valve 18 in a'normally open positionthrough the medium of the operating rod 19. The normal position of thecover or pressure plate 20 with respect to the upper edge of thepartition 12 is controlled or regulated by a nut or threaded adjustingblock 22 suitably secured to the upper side of the pressure plate andwhich is provided with a hand wheel 23 for readily adjusting the same.The pulp enters the box or compartment 13 faster than it is dischargedfrom the opening 16 and consequently fills the compartment and flowsover the partition 12 into the overflow box or compartment 1%. In thusfilling the compartment 13 and flowing over the partition 12, the pulpor stock comes into engagement with the lower side of the cover orpressure plate 20 and exerts an upward pressure on said plate to agreater or less extent according to the consistency of the pulp. In thuslifting the plate 20 the plate 18 is also lifted to some extent throughthe operat ing rod 19 thusclosing the discharge opening 16 to a greateror less degree and thereby controlling the discharge of the pulp fromthe compartment 13 to the machine according to the consistency ordensity of the pul v.

Iii addition to the feed regulating mechanism just described, I alsoprovide means for regulating the flow of the pulp accordingto the speedof the machine, said means comprising a feed valve or gate 24 which isslidably mounted on the inner side of the compartment 13 above thedischarge opening 16 therein and is provided with a stem 25 which worksthrough a slot 26 in the adjacent side of the box 11 and is connected tothe lower end of a pair of valve shifting rods 27 which extend upwardlythrough guide openings in a governor support-ing bracket 28 secured tothe side of the box and are connected at their upper ends to anadjusting block 29 slidably mountedvon the shaft 30 of a centrifugalgovernor 31. The weighted arms of the governor are suitably connected tothe block 29 whereby the latter is raised and lowered on the shaft 30 bythe centrifugal action of the governor, thus raising and lowering thegate or valve 24 to open and close the discharge opening 16 to a greateror less extent which will permit more or less pulp to flow through thepipe 17 to the machine according to the speed at which the latter isworking, the machine being connected with the governor by a suitablymounted drive shaft 32 having on one end a bevel gear 33 which mesheswith a similar gear 34 on the shaft 30 of the governor and has mountedon its opposite end a drive pulley 35 adapted to receive the belt from amoving part of the machine.

In addition to the automatically operated valves 18 and 24 the dischargeof the pulp from the pressure box or compartment 13 may also becontrolled by a manually operated valve 36 arranged in the pulpconducting pipe 17 adjacent to the discharge opening 16 as shown.

From the foregoing description takenin connection with the accompanyingdrawings, the construction and and operation of the invention will bereadily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificingany of the advantages of the invention as claimed.

Having thus described my invention, what I claim is;

1. In a .feed regulating mechanism for paper making machines, thecombination of a pressure box having a pulp discharging opening, a valvefor regulatingthe size of said opening and a valve operating mechanismarranged in said box and adapted to be connected with a moving part ofthe engine wherebythe position of the valve is automatically regulatedto control the flow of the pulp from the box according to the speed atwhich the machine is working.

5 2. In a feed regulating mechanism for Epapermaking machines thecombination with a pressure box having therein a discharge opening, ofvalves adapted to regulate the size of said opening and thereby controlthe'fiow of pulp from. the box, a valve operating mechanism connectedwith one of said valves and adapted to be actuated by the overflow ofthe pulp from the box whereby the valve is regulated according to the.consistency of the pulp, and means connected with the other valve andadapted to be connected with a moving part of the engine whereby thelatter valve is automatically regulated to control the flow of the pulpfrom the box according to the speed at which the machine is working.

3. In a feed regulating mechanism for paper making machines, thecombination with a pressure box having therein a discharge opening, anoverflow box adapted to receive the overflow of the pulp from saidpressure box, valves adapted to regulate the size of saiddischarge'opening, a valve operating mechanism connected with one ofsaid valves and with the machine whereby the valve is regulated tocontrol the discharge of the pulp according to the speed at which themachine is working, a pressure actuated operating mechanism connectedwith the other valve, said mechanism comprising a pressure platehingedly connected in the upper end of the pressure box and adapted tobe engaged and operated by the overflow of the pulp from saidcompartment, an operating rod connected at one end with said valve andhaving its opposite end adjustably connected with said pressure platewhereby the valve is opened and closed by the movement of said plateaccording to the consistency of the pulp overflowing from the box andpressing against the plate.

' 4. In a feed regulating mechanism for paper making machines, thecombination with a pressure box having therein a discharge opening,valves to open and close said opening, a valve operating mechanismconnected with one of said valves and adapted to be actuated by thepressure of the pulp overflowing from the box whereby the discharge ofthe pulp through said discharge opening is regulated according to theconsistency of the pulp, a valve controlling mechanism connected withthe other valve, said mechanism comprising valve shifting rods securedat their lower ends to the valve, a centrifugal governor having anoperative connection with the upper ends of said rods, and means wherebysaid governor is connected with and driven by the machine therebyregulating said valve to control the flow of pulp through the dischargeopening in the box according to the speed of the enine.

g 5. In a feed regulating mechanism for paper making machines an upperbox having arranged therein a feed compartment, a gravity pressurecompartment and an overflow compartment, a feed pipe connected to saidfeed compartment, an overflow pipe connected with said overflowcompartment, a lower box arranged below said upper box and having formedtherein a pressure compartment, and an overflow compartment saidpressure compartment having forme therein a discharge opening, a pulpcon ducting tube to connect said upper gravity pressure compartment withthe pressure compartment in the lower box, valves adapted to regulatethe size of the discharge opening in said lower pressure compartment, avalve operating mechanism connected to one of said valves and comprisinga pressure plate hingedly connected to one side of the compartment andadapted to be actuated by the pressure of the pulp therein, a valveoperating rod to connect said valve with said plate, a nut adapted to bescrewed onto the upper end of said rod whereby an adjustable connectionis provided between the same and said plate, a weight arranged on saidvalve plate and a valve operating mechanism connected with the othervalve whereby the latter is regulated by the speed of the machine.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit-- IXBSSGS.

HENRY O. ZIEMANN. Witnesses:

J. F. S'rnvnNs, G. B. MORAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. O.

